Carcinoembryonic antigen blood test. Last reviewed: September 20, 2013. The CEA test measures the level of carcinoembryonic antigen (CEA) in the blood. CEA is a protein normally found in the tissue of a developing baby in the womb.The blood level of this protein disappears or becomes very low after birth.he CEA test measures the level of carcinoembryonic antigen (CEA) in the blood.
If the pH of your blood falls below 7.35, the result is a condition called acidosis, a state that leads to central nervous system depression. Severe acidosis-where blood pH falls below 7.00 - can lead to a coma and even death. If the pH of your blood rises above 7.45, the result is alkalosis.
In this vein, there are various mechanisms in your body that work together to maintain a proper pH balance throughout your body. The acidity or alkalinity of a substance is measured using pH. The pH scale runs from 0 to 14, with 0 being the most acidic, 14 being the most alkaline, and 7 being neutral.To survive, our bodies must maintain the pH very close to 7.4, which is just on the alkaline side of neutral.he acidity or alkalinity of a substance is measured using pH. The pH scale runs from 0 to 14, with 0 being the most acidic, 14 being the most alkaline, and 7 being neutral. To survive, our bodies must maintain the pH very close to 7.4, which is just on the alkaline side of neutral.